<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>系统菜单</title>
</head>

<body>
  <h2>请查看应用菜单</h2>
  <ul>
    <li>窗口菜单</li>
    <li>上下文菜单</li>
    <li>托盘菜单</li>
    <li>Dock菜单（macOS 平台特有）</li>
  </ul>
</body>

</html>